Georgejfrain



G. FRAIN. LETTER AND BUNDLE TIE. APPucAnoM msu Nv.5.1911;

Patented Sep UNITED STATES "PATENT enonenraniiv, or Koiz'oivi'o, INDANA.

LETTER Anp Burma TIE., f Y

Snecaiionef Lei-tar Paiem- Batentedzsept 1:6, .1919.

Application Afiled November 5, 1917,- Serial No. `200,306.

which the following is aspecificatiomreference be-ing had therein to theaccompanying drawing.

The object of the invention is to provide? a letter andv bundle tie,which will securely hold a bundle of letters or other bundle securelyand at the same -ti-ine, so construct the clamping means that the samecan beV easily and quickly released or tightened as the number ofletters in the bundle is de-v creased or increased.

A further object is to so construct the clamping'means of the tie, thatthere will be a double clamping of the strap that goes around thepackageof let-ters.

A further object of the invention is to construct the clamping memberproper in two parts, the main' plate being provided with means forsecuring the clamping plate thereto, said clamping plate havingupstanding side flanges engaging the end of the main plate therebypreventing an upward bending of the clamping plate, said clamping platehaving a double member carried in bearings of its upstandiiig lianges.

A further object is to provide a letter or bundle tie clamping memberwherein a double clamping is accomplished and wherein a pull upon thefree end of the strap will release the double clamping member.

A further object is to provide means for securing the permanently iixedend of the strap, so that, the same may be securely held between teethwhich form strap engaging means, but of such a construction that theymay be easily bent downwardly and the strap removed for renewing thesame.

Other objects will appear and be better understood from the embodimentof the invention of which the following is a specification, referencebeing had to the accompanying drawings forming part thereof, in whichFigure 1 is a. perspective view of the letter or bundle tie, showing thesaine applied to a bundle.

Fig. 2 is a sectional view on line 2--2 of Fig. 1.

Fig. 3 is a top plan View of Hthe clamp, the strap being-'eliminated tobetter 'show the construction.

y'Figif is a perspective view of theplate and 'clampingmember. L

Fig' 5 is ai 'topman View 0f the cllrnpfvv Y i Showing" theSll'stillpeicl from a Single.

piece of sheet metal.

Fig. 6v is a sectional viewv on line 6 6 of Referring .to the drawings.1 designates a package of lettersor bundle and"2` the clam-p as awhole.` The Aclam1p2 comprises a body member 3, which is provided'l ati'tsends with rolls 4 and 5. The body in 'eiirb'er3 is provided near oneend with a plurality of zigzag slits 6 and7, which forma series oftransverse teeth V8, which are bent downwardly. ,One end of a strapf9is'passed upwardly through the slot 6 andfthen downwardly throughtheslot 7 after whichtlie teeth 8 are bent into eifigagnient with'tle*strap adjacent the slots 6 and 7. From this construction it will beseen that one end of the` strap will be securely fastened to the plate3, it will also be seen that the strap may be easily removed byinserting a tool into the slots from the top of the plate 3 and pressingdownwardly upon said tool.

Mounted in the roll 5 of the plate 3 is a metal loop 3a. The extensionforming the roll 4 of the body member 3 extends through a slot 10 in theclamping plate 11, said clamping plate having an extension 12, which issecurely clamped and held against displacement by the roll 4. Theclamping member 11 comprises the plate 12, which is disposed lower thanthe plate 3 so 'that the roll 4- will form an abutment. The clampingplate 12 has a pair of upstanding ears 13, one end of each of said earsengaging the plate 3 as at 14, thereby providing means for preventingthe plate from being easily bent during the tightening operation of thestrap. Mounted in bearings 14 of said upstanding ears are the pintles 15of the pivoted double clamping member 16. The clamping member 16 has adownwardly eX- tending member 17 adapted to engage the strap 9, after ithas been passed around the bundle and clamp the same against the plate12. The rearwardly extending toothed member 18 of the clamp 16, engagesand clamps the strap as at 19 against the roll Ll, which auxiliaryclamping is of value when there is a great deal of resiliency in thelettoward the loop end of the main plate and as the teeth of the member17 arerin engagement with the strap, the clamping member as a whole willbe caused to turn on its pintles until the member 17 has passed throughthe vertical, at which time the memi bers 17 and 18 will be out ofengagement with the strap. Vhen the double clamp is out of engagementwith the strap the free end of the strap will freely pass under doubleclamp and the package of letters released. During the unclampingoperation the necessary slack is obtained by the squeezing together ofthe letters, which is caused by the pulling action on the free end ofthe strap.

In Figs. 5 and 6 the members 3 and l1 have been made in one piece. Inthis form the roll i has been eliminated and an abutment 4 forms meansfor the strap to be clamped against.

Having thus described my invention what I claim and desire to secure byLetters Patent is l.l A bundle tie comprising a clamp formed from twoplates, a body plate having toothed slots at one end for securing oneend of the strap, a clamping plate rigidly secured to the other end ofsaid body plate and disposed below said body plate, upstanding lugsCarried by said clamping plate and engaging one end of the body plateand means carried by said clamping plate for securely clamping the freeend of the strap.

2. A bundle tie comprising a clamp formed from two plates, a body platehaving rolls at each end thereof, one of said rolls having a clampingplate rigidly secured thereto and disposed lower than the body plate, apivoted double clamping member carried by said clamping plate, a strapsecured to one end of the body plate, its free end being clamped betweenone jaw of the pivoted clamping member and the clamping plate and itsfree end also clamped between the other jaw of the pivoted clampingmember and the plate member roll.

In testimony whereof I hereunto affix my signature.

GEORGE FRAIN.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

